Universal three-axis inclination angle sensing fulcrum control circuit

Abstract

The utility model provides a universal three-axis inclination angle sensing fulcrum control circuit which is fast in transmission rate, more in transmission information and strong in anti-interference capability. The system comprises an MCU module, a sensor module and a temperature sampling module, the MCU module is respectively connected with the sensor module and the temperature sampling module, the system also comprises a 900MHz wireless transmission module and a 2.4 GHz wireless transmission module which are respectively connected with the MCU module, and the 900MHz wireless transmission module and the 2.4 GHz wireless transmission module are also connected with an external server. And the 900MHz wireless transmission module and the 2.4 GHz wireless transmission module can respectively support a 900MHz wireless transmission frequency band and a 2.4 GHz wireless transmission frequency band.

Description

Technical Field

[0001] The utility model relates to the technical field of sensing network acquisition fulcrums, in particular to a general-purpose three-axis inclination sensing fulcrum control circuit. Background Technique

[0002] At present, as a commonly used sensing network acquisition fulcrum, the three-axis inclination sensing fulcrum is widely used in attitude control and motion monitoring in fields such as unmanned aerial vehicles, robots, vehicles, and ships. The Chinese utility model patent application number 202421568154.6 discloses an enhanced three-axis inclination sensing fulcrum control circuit. Since it is provided with an RF wireless transmission module, it can support data transmission in the 900 MHz wireless transmission band. However, when using this transmission method in this frequency band, there are disadvantages such as slow transmission rate, limited transmission information, and many external interferences. Content of the Utility Model

[0003] Aiming at the existing three-axis inclination sensing fulcrum control circuit, which uses the 900 MHz wireless transmission band and has problems such as slow transmission rate, limited transmission information, and many external interferences, the utility model provides a general-purpose three-axis inclination sensing fulcrum control circuit, which has a fast transmission rate, a large amount of transmitted information, and strong anti-interference ability.

[0004] Its technical solution is as follows: A general-purpose three-axis inclination sensing fulcrum control circuit, which includes an MCU module, a sensor module, and a temperature sampling module. The MCU module is respectively connected to the sensor module and the temperature sampling module. It is characterized in that: it further includes a 900 MHz wireless transmission module and a 2.4 GHz wireless transmission module respectively connected to the MCU module. The 900 MHz wireless transmission module and the 2.4 GHz wireless transmission module are also connected to an external server. The 900 MHz wireless transmission module and the 2.4 GHz wireless transmission module can respectively support the 900 MHz and 2.4 GHz wireless transmission bands.

[0005] It is further characterized in that: the MCU module includes an At128 single-chip microcomputer IC8, the At128 single-chip microcomputer IC8 is respectively connected to a clock IC9, a crystal oscillator X2 and a storage chip IC6, the 900MHz wireless transmission module includes a wireless transceiver chip IC10, the 2nd pin of the wireless transceiver chip IC10 is connected to one end of a capacitor C55, the other end of the capacitor C55 is connected to one end of a capacitor C56 and grounded, the other end of the capacitor C56 is connected to the 3rd pin of the wireless transceiver chip IC10 and a 3.3V1 voltage source, the 4th pin of the wireless transceiver chip IC10 is grounded through a capacitor C54, the 5th pin of the wireless transceiver chip IC10 is connected to the 3rd pin of a crystal oscillator X3 and one end of a capacitor C53, the other end of the capacitor C53 is connected to the 2nd pin of the crystal oscillator X3 and then grounded, the 6th pin of the wireless transceiver chip IC10 is connected to the 1st pin of the crystal oscillator X3 and one end of a capacitor C52, the other end of the capacitor C52 is connected to the 4th pin of the crystal oscillator X3 and grounded, the 7th pin of the wireless transceiver chip IC10 is connected to one end of a capacitor C51, one end of a resistor R28 and the 14th pin of the At128 single-chip microcomputer IC8, the other end of the capacitor C51 is grounded, the other end of the resistor R28 is connected to the 3.3V1 voltage source, the 8th, 9th, 16th to 19th pins of the wireless transceiver chip IC10 are respectively connected to the 53rd, 50th, 30th, 32nd, 31st, 16th pins of the At128 single-chip microcomputer IC8, the 14th pin of the wireless transceiver chip IC10 is connected to one end of a capacitor C57, one end of a capacitor C58 and the 3.3V1 voltage source, the other ends of the capacitor C57 and the capacitor C58 are connected to each other and then grounded, the 21st pin of the wireless transceiver chip IC10 is connected to one end of a capacitor C73 and one end of an inductor L8, the other end of the capacitor C73 is connected to one end of a capacitor C75 and then grounded, the other end of the inductor L8 is connected to the other end of the capacitor C75 and one end of a capacitor C74, the other end of the capacitor C74 is connected to the 3rd pin of a radio frequency switching switch IC12, the 0th pin of the wireless transceiver chip IC10 is connected to one end of a capacitor C66, one end of a capacitor C67 and grounded, the other ends of the capacitor C66 and the capacitor C67 are connected to each other and then connected to the 24th pin of the wireless transceiver chip IC10 and 3.3V1 voltage source, pins 15, 23, and 26 of the wireless transceiver chip IC10 are all grounded. Pin 25 of the wireless transceiver chip IC10 is connected to one end of inductor L5, one end of capacitor C68, and one end of capacitor C69. The other ends of capacitor C68 and capacitor C69 are connected to each other and then grounded. Pin 27 of the wireless transceiver chip IC10 is connected to one end of inductor L4. The other end of inductor L4 is connected to the other end of inductor L5, one end of capacitor C61, and one end of capacitor C62. The other end of capacitor C61 is connected to one end of inductor L6. The other end of inductor L6 is connected to one end of capacitor C63, one end of inductor L7, and one end of capacitor C59. The other end of inductor L7 is connected to one end of capacitor C64, the other end of capacitor C59, one end of capacitor C60, and one end of resistor R29. The other end of resistor R29 is connected to the other end of capacitor C60, one end of capacitor C65, and pin 1 of the RF switch IC12. The other ends of capacitor C62, capacitor C63, capacitor C64, and capacitor C65 are connected to each other and then grounded. Pin 2 of the RF switch IC12 is grounded. Pin 4 of the RF switch IC12 is connected to one end of capacitor C72 and one end of resistor R30. The other end of capacitor C72 is grounded. Pin 5 of the RF switch IC12 is connected to one end of capacitor C71. The other end of capacitor C71 is connected to pin 3 of the RF switch IC14. Pin 6 of the RF switch IC12 is connected to one end of capacitor C70, one end of resistor R32, and the collector of transistor Q6. The other end of capacitor C70 is grounded. The other end of resistor R32 is connected to the 3.3V1 voltage source. The emitter of transistor Q6 is grounded. The base of transistor Q6 is connected to one end of resistor R31. The other end of resistor R31 is connected to the other end of resistor R30 and then connected to pin 20 of the wireless transceiver chip IC10. Pin 2 of the RF switch IC14 is grounded. Pin 1 of the RF switch IC14 is connected to the 2.4GHz wireless transmission module, pin 4 of the RF switch IC14 is connected to one end of capacitor C77 and one end of resistor R18. The other end of capacitor C77 is grounded. The other end of resistor R18 is connected to one end of resistor R21, the collector of transistor Q2, and one end of resistor R11. The other end of resistor R11 is connected to the base of transistor Q1. The base of transistor Q2 is connected to one end of resistor R23 and pin 16 of the At128 single-chip microcomputer IC8. The emitter of transistor Q2 is connected to the other end of resistor R23 and then grounded. The emitter of transistor Q1 is grounded. Pin 5 of the RF switch IC14 is connected to pin 1 of antenna socket X1 and one end of bidirectional diode D3. The other end of bidirectional diode D3 is connected to pin 2 of antenna socket X1 and then grounded. Pin 6 of the RF switch IC14 is connected to one end of resistor R9, one end of capacitor C34, and the collector of transistor Q1. The other end of capacitor C34 is grounded. The other end of resistor R9 is connected to the other end of resistor R21 and then connected to the 3.3V1 voltage source;.

[0006] The 2.4GHz wireless transmission module includes an RF gain chip IC15. Pins 1, 5, 9, 11, 13, and 17 of the RF gain chip IC15 are all grounded. Pins 2, 3, and 6 of the RF gain chip IC15 are respectively connected to one end of a resistor R17, one end of a resistor R5, and one end of a resistor R2. The other ends of the resistor R17, the resistor R5, and the resistor R2 are respectively connected to pins 42, 43, and 41 of the At128 single-chip microcomputer IC8. Pin 7 of the RF gain chip IC15 is connected to pin 15 of the At128 single-chip microcomputer IC8. Pin 8 of the RF gain chip IC15 is connected to one end of a capacitor C79, one end of an inductor L9, and one end of a capacitor C78. The other end of the capacitor C78 is connected to one end of a capacitor C76 and grounded. The other ends of the capacitor C79, the inductor L9, and the capacitor C76 are connected together and then connected to the 900MHz wireless transmission module. Pin 10 of the RF gain chip IC15 is connected to one end of a capacitor C80 and one end of an inductor L10. The other end of the capacitor C80 is grounded. The other end of the inductor L10 is connected to one end of a capacitor C84 and one end of an inductor L11. The other end of the capacitor C84 is grounded. The other end of the inductor L11 is connected to pin 14 of the RF gain chip IC15, one end of a capacitor C83, and one end of an inductor L12. The other end of the inductor L12 is connected to one end of a capacitor C85, one end of a capacitor C88, and a 3V voltage source. The other ends of the capacitor C83, the capacitor C85, and the capacitor C88 are connected together and then grounded. Pin 15 of the RF gain chip IC15 is connected to one end of a resistor R24. The other end of the resistor R24 is connected to pin 16 of the At128 single-chip microcomputer IC8. Pin 16 of the RF gain chip IC15 is connected to one end of a capacitor C87, one end of a capacitor C86, and a 3V voltage source. The other ends of the capacitor C87 and the capacitor C86 are connected together and then grounded.

[0007] After adopting the above structure, since the MCU module of the present utility model is respectively connected to the 900MHz wireless transmission module and the 2.4GHz wireless transmission module, it can support two wireless transmission frequency bands of 900MHz and 2.4G respectively. The 900MHz wireless transmission frequency band has the advantages of low frequency and longer transmission distance under the same transmission power, and the transmission distance can be increased by setting a higher power. The 2.4GHz wireless transmission frequency band has the advantage of high frequency and can carry more transmission information within the same transmission time. Through the integrated and compatible design, different frequency bands can be selected according to the actual situation, achieving the advantages of fast transmission rate, more transmission information, and strong anti-interference ability. Description of the Drawings

[0008] Figure 1 It is the circuit schematic diagram of the MCU module of the present utility model;

[0009] Figure 2This is the circuit schematic diagram of the sensor module of the present utility model;

[0010] Figure 3 This is the circuit schematic diagram of the temperature sampling module of the present utility model;

[0011] Figure 4 This is the circuit schematic diagram of the 900MHz wireless transmission module of the present utility model;

[0012] Figure 5 This is the circuit schematic diagram of the 2.4GHz wireless transmission module of the present utility model;

[0013] Figure 6 This is the circuit schematic diagram of the power supply module of the present utility model;

[0014] Figure 7 This is the circuit schematic diagram of the test point of the present utility model. Detailed implementation manner

[0015] A general-purpose three-axis inclination sensing fulcrum control circuit includes an MCU module, a sensor module, and a temperature sampling module. As Figure 1 shown, the MCU module includes an At128 single-chip microcomputer IC8. The At128 single-chip microcomputer IC8 is respectively connected to a clock IC9, a crystal oscillator X2, and a storage chip IC6. The MCU module is respectively connected to the sensor module and the temperature sampling module. The specific circuit structures of the sensor module and the temperature sampling module are as Figure 2 、 3 shown, where the sensor chip IC7 in the sensor module uses a three-axis acceleration sensor.

[0016] It further includes a 900MHz wireless transmission module and a 2.4GHz wireless transmission module respectively connected to the MCU module. The 900MHz wireless transmission module and the 2.4GHz wireless transmission module are also connected to an external server. The 900MHz wireless transmission module and the 2.4GHz wireless transmission module can respectively support wireless transmission frequency bands of 900MHz and 2.4GHz.

[0017] Specifically, as Figure 4As shown, the 900MHz wireless transmission module includes a wireless transceiver chip IC10. One end of capacitor C55 is connected to pin 2 of the wireless transceiver chip IC10, and the other end of capacitor C55 is connected to one end of capacitor C56 and grounded. The other end of capacitor C56 is connected to pin 3 of the wireless transceiver chip IC10 and the 3.3V1 voltage source. Pin 4 of the wireless transceiver chip IC10 is grounded through capacitor C54. Pin 5 of the wireless transceiver chip IC10 is connected to pin 3 of crystal oscillator X3 and one end of capacitor C53. The other end of capacitor C53 is connected to pin 2 of crystal oscillator X3 and then grounded. Pin 6 of the wireless transceiver chip IC10 is connected to pin 1 of crystal oscillator X3 and one end of capacitor C52. The other end of capacitor C52 is connected to pin 4 of crystal oscillator X3 and grounded. Pin 7 of the wireless transceiver chip IC10 is connected to one end of capacitor C51, one end of resistor R28, and pin 14 of At128 single-chip microcomputer IC8. The other end of capacitor C51 is grounded, and the other end of resistor R28 is connected to the 3.3V1 voltage source. Pins 8, 9, 16 to 19 of the wireless transceiver chip IC10 are respectively connected to pins 53, 50, 30, 32, 31, 16 of At128 single-chip microcomputer IC8. Pin 14 of the wireless transceiver chip IC10 is connected to one end of capacitor C57, one end of capacitor C58, and the 3.3V1 voltage source. The other ends of capacitor C57 and capacitor C58 are connected to each other and then grounded. Pin 21 of the wireless transceiver chip IC10 is connected to one end of capacitor C73 and one end of inductor L8. The other end of capacitor C73 is connected to one end of capacitor C75 and then grounded. The other end of inductor L8 is connected to the other end of capacitor C75 and one end of capacitor C74. The other end of capacitor C74 is connected to pin 3 of radio frequency switch IC12. Pin 0 of the wireless transceiver chip IC10 is connected to one end of capacitor C66, one end of capacitor C67, and grounded. The other ends of capacitor C66 and capacitor C67 are connected to each other and then connected to pin 24 of the wireless transceiver chip IC10 and 3.A 3V1 voltage source. Pins 15, 23, and 26 of the wireless transceiver chip IC10 are all grounded. Pin 25 of the wireless transceiver chip IC10 is connected to one end of inductor L5, one end of capacitor C68, and one end of capacitor C69. The other end of capacitor C68 is connected to the other end of capacitor C69 and then grounded. Pin 27 of the wireless transceiver chip IC10 is connected to one end of inductor L4. The other end of inductor L4 is connected to the other end of inductor L5, one end of capacitor C61, and one end of capacitor C62. The other end of capacitor C61 is connected to one end of inductor L6. The other end of inductor L6 is connected to one end of capacitor C63, one end of inductor L7, and one end of capacitor C59. The other end of inductor L7 is connected to one end of capacitor C64, the other end of capacitor C59, one end of capacitor C60, and one end of resistor R29. The other end of resistor R29 is connected to the other end of capacitor C60, one end of capacitor C65, and pin 1 of the RF switch IC12. The other ends of capacitor C62, capacitor C63, capacitor C64, and capacitor C65 are connected together and then grounded. Pin 2 of the RF switch IC12 is grounded. Pin 4 of the RF switch IC12 is connected to one end of capacitor C72 and one end of resistor R30. The other end of capacitor C72 is grounded. Pin 5 of the RF switch IC12 is connected to one end of capacitor C71. The other end of capacitor C71 is connected to pin 3 of the RF switch IC14. Pin 6 of the RF switch IC12 is connected to one end of capacitor C70, one end of resistor R32, and the collector of transistor Q6. The other end of capacitor C70 is grounded. The other end of resistor R32 is connected to the 3.3V1 voltage source. The emitter of transistor Q6 is grounded. The base of transistor Q6 is connected to one end of resistor R31. The other end of resistor R31 is connected to the other end of resistor R30 and then connected to pin 20 of the wireless transceiver chip IC10. Pin 2 of the RF switch IC14 is grounded. Pin 1 of the RF switch IC14 is connected to the 2.4GHz wireless transmission module. Pin 4 of the RF switch IC14 is connected to one end of capacitor C77 and one end of resistor R18. The other end of capacitor C77 is grounded. The other end of resistor R18 is connected to one end of resistor R21, the collector of transistor Q2, and one end of resistor R11. The other end of resistor R11 is connected to the base of transistor Q1. The base of transistor Q2 is connected to one end of resistor R23 and pin 16 of the At128 single-chip microcomputer IC8. The emitter of transistor Q2 is connected to the other end of resistor R23 and then grounded. The emitter of transistor Q1 is grounded. Pin 5 of the RF switch IC14 is connected to pin 1 of the antenna socket X1 and one end of the bidirectional diode D3. The other end of the bidirectional diode D3 is connected to pin 2 of the antenna socket X1 and then grounded. Pin 6 of the RF switch IC14 is connected to one end of resistor R9, one end of capacitor C34, and the collector of transistor Q1. The other end of capacitor C34 is grounded. The other end of resistor R9 is connected to the other end of resistor R21 and then connected to the 3.3V1 voltage source;.

[0018] Such as Figure 5As shown in the figure, the 2.4GHz wireless transmission module includes an RF gain chip IC15. Pins 1, 5, 9, 11, 13, and 17 of the RF gain chip IC15 are all grounded. Pins 2, 3, and 6 of the RF gain chip IC15 are respectively connected to one end of resistors R17, R5, and R2. The other ends of resistors R17, R5, and R2 are respectively connected to pins 42, 43, and 41 of the At128 single-chip microcomputer IC8. Pin 7 of the RF gain chip IC15 is connected to pin 15 of the At128 single-chip microcomputer IC8. Pin 8 of the RF gain chip IC15 is connected to one end of capacitor C79, one end of inductor L9, and one end of capacitor C78. The other end of capacitor C78 is connected to one end of capacitor C76 and grounded. The other ends of capacitor C79, inductor L9, and capacitor C76 are connected together and then connected to the 900MHz wireless transmission module. Pin 10 of the RF gain chip IC15 is connected to one end of capacitor C80 and one end of inductor L10. The other end of capacitor C80 is grounded. The other end of inductor L10 is connected to one end of capacitor C84 and one end of inductor L11. The other end of capacitor C84 is grounded. The other end of inductor L11 is connected to pin 14 of the RF gain chip IC15, one end of capacitor C83, and one end of inductor L12. The other end of inductor L12 is connected to one end of capacitor C85, one end of capacitor C88, and the 3V voltage source. The other ends of capacitor C83, capacitor C85, and capacitor C88 are connected together and then grounded. Pin 15 of the RF gain chip IC15 is connected to one end of resistor R24. The other end of resistor R24 is connected to pin 16 of the At128 single-chip microcomputer IC8. Pin 16 of the RF gain chip IC15 is connected to one end of capacitor C87, one end of capacitor C86, and the 3V voltage source. The other ends of capacitor C87 and capacitor C86 are connected together and then grounded.

[0019] As Figure 6 shown, it also includes a power supply module for powering each module. Through this power supply module, internal power supply can be provided for the circuit of the present invention, improving the portability of use.

[0020] The working principle of the present invention is as follows:

[0021] Through the temperature sampling module and the sensor module, the environmental temperature, inclination measurement, and object motion detection information can be collected, and the collected information is sent to the MCU module for processing. The MCU module uploads the processed information to the server through the 900MHz wireless transmission module or the 2.4GHz wireless transmission module. Since the patent of the present invention is compatible with two frequency band working modes, the corresponding frequency band can be selected for data transmission according to the actual situation, so as to achieve the advantages of fast transmission rate, large amount of transmitted information, and strong anti-interference ability.

[0022] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those who are familiar with the technology within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A universal three-axis tilt sensor fulcrum control circuit, comprising an MCU module, a sensor module, and a temperature sampling module, wherein the MCU module is connected to the sensor module and the temperature sampling module respectively, and characterized in that: It also includes a 900MHz wireless transmission module and a 2.4GHz wireless transmission module respectively connected to the MCU module, the 900MHz wireless transmission module and the 2.4GHz wireless transmission module are also connected to an external server, and the 900MHz wireless transmission module and the 2.4GHz wireless transmission module can support 900MHz and 2.4GHz wireless transmission frequency bands respectively; The sensor type in the sensor module is a three-axis acceleration sensor.

2. A universal three-axis tilt sensor fulcrum control circuit according to claim 1, characterized in that: The MCU module includes an At128 single-chip microcomputer IC8, and the At128 single-chip microcomputer IC8 is respectively connected to a clock IC9, a crystal oscillator X2 and a storage chip IC6. The 900MHz wireless transmission module includes a wireless transceiver chip IC10, and the 2nd foot of the wireless transceiver chip IC10 is connected to one end of a capacitor C55, and the other end of the capacitor C55 is connected to one end of a capacitor C56 and grounded, and the other end of the capacitor C56 is connected to the 3rd foot of the wireless transceiver chip IC10 and a 3.3V1 voltage source. The 4th pin of the wireless transceiver chip IC10 is grounded through the capacitor C54, the 5th pin of the wireless transceiver chip IC10 is connected to the 3rd pin of the crystal oscillator X3 and one end of the capacitor C53, the other end of the capacitor C53 is connected to the 2nd pin of the crystal oscillator X3 and then grounded, the 6th pin of the wireless transceiver chip IC10 is connected to the 1st pin of the crystal oscillator X3 and one end of the capacitor C52, the other end of the capacitor C52 is connected to the 4th pin of the crystal oscillator X3 and grounded, the 7th pin of the wireless transceiver chip IC10 is connected to one end of the capacitor C51, one end of the resistor R28 and the 1st pin of the At128 microcontroller IC8 4 pin, the other end of the capacitor C51 is grounded, the other end of the resistor R28 is connected to a 3.3V1 voltage source, the 8th, 9th, 16th to 19th pins of the wireless transceiver chip IC10 are respectively connected to the 53th, 50th, 30th, 32nd, 31st, 16th pins of the At128 microcontroller IC8, the 14th pin of the wireless transceiver chip IC10 is connected to one end of the capacitor C57, one end of the capacitor C58 and the 3.3V1 voltage source, the other end of the capacitor C57 is connected to the other end of the capacitor C58 and then grounded, the wireless transceiver chip IC10 Pin 21 of the wireless transceiver chip IC10 is connected to one end of capacitor C73 and one end of inductor L8, the other end of capacitor C73 is connected to one end of capacitor C75 and then grounded, the other end of inductor L8 is connected to the other end of capacitor C75 and one end of capacitor C74, the other end of capacitor C74 is connected to pin 3 of RF switch IC12, pin 0 of wireless transceiver chip IC10 is connected to one end of capacitor C66 and one end of capacitor C67 and grounded, the other end of capacitor C66 is connected to the other end of capacitor C67 and then connected to pin 24 and pin 3 of wireless transceiver chip IC10.3V1 voltage source, the 15th, 23rd, and 26th pins of the wireless transceiver chip IC10 are all grounded, the 25th pin of the wireless transceiver chip IC10 is connected to one end of the inductor L5, one end of the capacitor C68, and one end of the capacitor C69, the other end of the capacitor C68 is connected to the other end of the capacitor C69 and then grounded, the 27th pin of the wireless transceiver chip IC10 is connected to one end of the inductor L4, the other end of the inductor L4 is connected to the other end of the inductor L5, one end of the capacitor C61, and one end of the capacitor C62, the inductor L4 is connected to the other end of the inductor L5, one end of the capacitor C61, and one end of the capacitor C62, the inductor L4 is connected to the other end of the inductor L5, the capacitor C61, and ...8, and the capacitor C69, the other end of the capacitor C68 is connected to the other end of the capacitor C69, the other end of the capacitor C68 is connected to the other end of the inductor L4, the capacitor C68, and the capacitor C69, the other end of the capacitor C68 is connected to the other end of the inductor L5, the capacitor C68, and the capacitor C69, the other end of the capacitor C68 is connected to the other end of the inductor L4, the The other end of capacitor C61 is connected to one end of inductor L6, the other end of inductor L6 is connected to one end of capacitor C63, one end of inductor L7, and one end of capacitor C59, the other end of inductor L7 is connected to one end of capacitor C64, the other end of capacitor C59, one end of capacitor C60 and one end of resistor R29, the other end of resistor R29 is connected to the other end of capacitor C60, one end of capacitor C65 and pin 1 of RF switch IC12, the other end of capacitor C62, the other end of capacitor C63, capacitor C59 and one end of capacitor C60. The other end of C64 and the other end of capacitor C65 are connected to ground, pin 2 of the RF switch IC12 is grounded, pin 4 of the RF switch IC12 is connected to one end of capacitor C72 and one end of resistor R30, the other end of capacitor C72 is grounded, pin 5 of the RF switch IC12 is connected to one end of capacitor C71, the other end of capacitor C71 is connected to pin 3 of RF switch IC14, pin 6 of the RF switch IC12 is connected to one end of capacitor C70, one end of resistor R32 and the collector of transistor Q6, the other end of capacitor C70 is grounded, the other end of resistor R32 is connected to 3.3V1 voltage source, the emitter of transistor Q6 is grounded, the base of transistor Q6 is connected to one end of resistor R31, the other end of resistor R31 is connected to the other end of resistor R30 and then connected to pin 20 of wireless transceiver chip IC10, pin 2 of the RF switch IC14 is grounded, and pin 1 of the RF switch IC14 is connected to pin 2.4GHz wireless transmission module, the 4th pin of the radio frequency switch IC14 is connected to one end of the capacitor C77 and one end of the resistor R18, the other end of the capacitor C77 is grounded, the other end of the resistor R18 is connected to one end of the resistor R21, the collector of the transistor Q2, and one end of the resistor R11, the other end of the resistor R11 is connected to the base of the transistor Q1, the base of the transistor Q2 is connected to one end of the resistor R23 and the 16th pin of the At128 microcontroller IC8, the emitter of the transistor Q2 is connected to the other end of the resistor R23 The emitter of the transistor Q1 is grounded, the 5th pin of the RF switch IC14 is connected to the 1st pin of the antenna base X1 and one end of the bidirectional diode D3, the other end of the bidirectional diode D3 is connected to the 2nd pin of the antenna base X1 and then grounded, the 6th pin of the RF switch IC14 is connected to one end of the resistor R9, one end of the capacitor C34, and the collector of the transistor Q1, the other end of the capacitor C34 is grounded, the other end of the resistor R9 is connected to the other end of the resistor R21 and then connected to the 3.3V1 voltage source. .

3. A universal three-axis tilt sensor fulcrum control circuit according to claim 2, characterized in that: The 2.4 GHz wireless transmission module includes an RF gain chip IC15, wherein the 1st, 5th, 9th, 11th, 13th, and 17th pins of the RF gain chip IC15 are all grounded, the 2nd, 3rd, and 6th pins of the RF gain chip IC15 are respectively connected to one end of a resistor R17, one end of a resistor R5, and one end of a resistor R2, the other end of the resistor R17, the other end of the resistor R5, and the other end of the resistor R2 are respectively connected to the 42nd, 43rd, and 41st pins of the At128 single-chip microcomputer IC8, the 7th pin of the RF gain chip IC15 is connected to the 15th pin of the At128 single-chip microcomputer IC8, the 8th pin of the RF gain chip IC15 is connected to one end of a capacitor C79, one end of an inductor L9, and one end of a capacitor C78, ​​the other end of the capacitor C78 is connected to one end of a capacitor C76 and is grounded, the other end of the capacitor C79, the other end of the inductor L9, and the other end of the capacitor C76 are connected and then connected to the 900 MHz wireless transmission module, and the RF gain chip IC15 is connected to the 900 MHz wireless transmission module. The 10th foot of the chip IC15 is connected to one end of the capacitor C80 and one end of the inductor L10, the other end of the capacitor C80 is grounded, the other end of the inductor L10 is connected to one end of the capacitor C84 and one end of the inductor L11, the other end of the capacitor C84 is grounded, the other end of the inductor L11 is connected to the 14th foot of the RF gain chip IC15, one end of the capacitor C83, one end of the inductor L12, the other end of the inductor L12 is connected to one end of the capacitor C85, one end of the capacitor C88 and a 3V voltage voltage source, the other end of the capacitor C83, the other end of the capacitor C85, and the other end of the capacitor C88 are connected and then grounded, the 15th foot of the RF gain chip IC15 is connected to one end of the resistor R24, the other end of the resistor R24 ​​is connected to the 16th foot of the At128 microcontroller IC8, the 16th foot of the RF gain chip IC15 is connected to one end of the capacitor C87, one end of the capacitor C86 and a 3V voltage source, and the other end of the capacitor C87 is connected to the other end of the capacitor C86 and then grounded.

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